• 3 to 20V DC; Current: 0.05 to 3A (USB-A); 3 to 20V DC; Current: 0.05 to 5A (USB-C)
• Continuously monitor up to 1000 hours of voltage, current, capacity/charge delivered, energy, and resistance (calculated)
• Tests most common standard USB-A or USB-C ports, including Qualcomm Quick Charge ports
• Store and recall up to 10 readings
• Voltage and current overload detection
• Hi-resolution LCD for clear visibility in environments with low ambient lighting
• Device must be used in line between source being measured and power source
• Rugged, pocket-sized, and light weight Klein industrial design stands up to jobsite demands
• Built to withstand a 6.6-Foot (2m) drop
• No batteries needed; powered by the USB port being tested

The Klein Tools ET920 is a USB digital meter for Type-A and Type-C ports. It accurately and reliably measures and displays the USB port voltage, current, capacity, energy, and resistance simultaneously. It can function with any USB-A and most USB-C ports, including Qualcomm Quick Charge® ports that have the ability to deliver power. It requires NO batteries as it draws power from the power source to function.